<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">

function boom()
{
  document.getElementById("hr").removeAttribute("width");

  document.documentElement.offsetHeight;

  var newTR = document.createElement("tr");
  document.getElementById("table").appendChild(newTR);
}

</script>
</head>

<body onload="boom()">

<table id="table">
  <tbody>
    <tr>
      <td>
        <div><hr width="7000" id="hr"></div>
        <div style="-moz-column-width: 100px;">x<li></li></div>
      </td>
    </tr>
  </tbody>
</table>

</body>
</html>
